Results 21 to 30 of about 3,090,577 (290)

Influence of bluff-body and swirl on mixing and intermittency of jets [PDF]

open access: yes, 2010
In this paper we present the modelled results of turbulence, scalar mixing and intermittency for three different basic fluid dynamical problems using large eddy simulation (LES). The modelled problems are a turbulent round jet, a bluff body stabilised
Kirkpatrick, M. P.   +3 more
core   +2 more sources

Combustion in swirling flows: A review

open access: yesCombustion and Flame, 1974
Melting and burning of suspended alkane droplets are studied experimentally under electric field. It is found that the melting rate substantially decreases if electric field strength exceeds some critical value. It is about 60 kV/m under our experimental conditions.
N Syred, J M Beer
openaire   +1 more source

Experimental study of hydrodynamic performances of pre-swirl pumpjet propeller

open access: yesXibei Gongye Daxue Xuebao, 2023
A pre-swirl pumpjet propeller(PJP) is widely used in the new generation of quiet submarines all over the world, although the experimental study of its hydrodynamic performances is still rare. This paper carries out experimental tests of the pre-swirl PJP
QIN Denghui   +4 more
doaj   +1 more source

Parametric Study of High-Efficiency and Low-Emission Gas Burners

open access: yesAdvances in Materials Science and Engineering, 2013
The objective of this study is to investigate the influence of three significant parameters, namely, swirl flow, loading height, and semi-confined combustion flame, on thermal efficiency and CO emissions of a swirl flow gas burner.
Shuhn-Shyurng Hou, Ching-Hung Chou
doaj   +1 more source

Modelling of turbulent swirling flows [PDF]

open access: yes, 2004
This thesis investigates the predictability of non-reacting and reacting anistropic turbulent, swirling flows using popular turbulence models with a robust numrical procedure. The performance of these turbulence models is assessed and compared against
Jones, Lee Nicholas
core   +6 more sources

Stochastic Chaos in a Turbulent Swirling Flow [PDF]

open access: yesPhysical Review Letters, 2017
We report the experimental evidence of the existence of a random attractor in a fully developed turbulent swirling flow. By defining a global observable which tracks the asymmetry in the flux of angular momentum imparted to the flow, we can first reconstruct the associated turbulent attractor and then follow its route towards chaos.
Faranda, Davide   +6 more
openaire   +4 more sources

Effect of swirl on fluctuation of pressure drop in a gas–liquid slug flow

open access: yesMeasurement: Sensors, 2020
Slug flow as one of the typical two-phase flow patterns occurs widely in industry. The fluctuating phenomenon in slug flow is harmful to the pipeline system and should be suppressed.
Wen Liu, Xiaofei Lv, Zhongchuang Zhao
doaj   +1 more source

Experimental study on the outlet flow field and cooling performance of vane-shaped pre-swirl nozzles in gas turbine engines

open access: yesCase Studies in Thermal Engineering, 2023
The pre-swirl nozzles are a crucial part of gas turbine's cooling pre-swirl system, because they directly affect the cooling performance of the system and the life of the turbine blades.
Yuxin Liu   +3 more
doaj   +1 more source

Effects of Variable Valve Lift on In-Cylinder Air Motion

open access: yesEnergies, 2015
An investigation into in-cylinder swirl and tumble flow characteristics with reduced maximum valve lifts (MVL) is presented. The experimental work was conducted in the modified four-valve optical spark-ignition (SI) test engine with three different MVL ...
Tianyou Wang   +4 more
doaj   +1 more source

Study of jet precession, recirculation and vortex breakdown in turbulent swirling jets using LES. [PDF]

open access: yes, 2009
Large eddy simulations (LES) are used to investigate turbulent isothermal swirling flows with a strong emphasis on vortex breakdown, recirculation and instability behaviour.
Ranga Dinesh, K.K.J.   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy